A: Mitochondrial disease
B: Autosomal recessive
C: Autosomal dominant
D: X-linked
举一反三
- In human, color blindness is caused by sex linked recessive genes, while blue eye is caused by autosomal recessive genes. A blue eyed woman whose father is color blind marries a brown eyed man whose mother is blue eyed. How many of their sons are blue eyed? ( ) A: 1/2 B: 1/3 C: 1/4 D: 3/4
- A 35-year-old man is awakened at night because of severe lower abdominal pain that radiates to the groin. The pain is very intense and comes in waves. The next morning， he notices blood in his urine. On examination， there are no remarkable findings. Which of the following is the most likely diagnosis？（ ） A: Acute cystitis B: Renal cell carcinoma C: Ureteral lithiasis D: Hydronephrosis E: Autosomal dominant polycystic kidney disease
- A heritable trait with two different forms (dominant and recessive) is known as A: an allele. B: a genotype. C: a phenotype. D: a gene.
- Which of the following inherited disease only inherited from mother? <br/>() A: Single-gene disorder B: Polygenic disorder C: Chromosome disorder D: Mitochondrial disease
- A unit of heredity with two or more different forms (usually dominant and recessive) is known as A: an allele. B: a genotype. C: a phenotype. D: a gene.
内容
- 0
In codominance, heterozygote (Aa) has an intermediate phenotype between the dominant homozygote (AA) and recessive homozygote (aa).
- 1
A________ trait is opposed to a recessive trait which is expressed only when two copies of the gene are present. A: determinant B: dormitory C: dominant D: dormant
- 2
Which one does not belong to neurodegeneration? A: dementia B: Parkinson’s disease C: Huntington’s D: diarrhea
- 3
下列疾病不属于神经退行性疾病的是 A: Alzheimer’s Disease B: Guillain-Barrés syndrome C: Huntington’s Disease D: Amyotrophic Lateral Sclerosis
- 4
When white cat cross to black cat, F1 is white cat. F1 cats cross each other, and the proportion of white, black and brown cats in F2 is 9:3:4. What is the reason for this? ( ) A: Dominant epistasis B: Additive effect C: Recessive epistasis D: Suppression